Power Supply? First of all, I am well aware of all the dangers of television repair. Secondly, if I wanted to take it to a shop I would have done so. What I need is highly detailed, step by step instructions and a place to order the part(s).
Now, that being said, when I turn on the TV you can here the power "click" on, but there is no power light and the screen stays dark. I suspect it is the power supply. Can the power supply simply be replaced without any re-programming/re-setting of any chip(s)?

Me Again (q4g54twae), I called Zenith today (08.11.06) and they informed me since I was not an authorized service repair center they would not EVER give me technical advice or sell me parts. I told these pieces of maggot excrement this was the primary reason I would NEVER buy a Zenith product ever again, and I told this person to relay this messsage to EVERYBODY at Zenith. And, for the recored, I have been aurhorized by GOD Himself to service, repair and maintain any and all things that come into my sphere of influence, and I have the documentation to prove this (read your Bible to verify this). Now then, I have an oscilloscope (among many other tools) and I know how to use them and, yes, I have years of training to go along with them. As for replacing components on circut boards, I was trained by a NASA cretified electronics technician. What I now need is the exact part numbers and a place to get the best service manual(s). I am fully capable of testing and replacing any and all parts on a circut board. As always, your assistance is much appreciated. Thanks. q4g54twaeMe Again (q4g54twae),
I called Zenith today (08.11.06) and they informed me since I was not an authorized service repair center they would not EVER give me technical advice or sell me parts. I told these pieces of maggot excrement this was the primary reason I would NEVER buy a Zenith product ever again, and I told this person to relay this messsage to EVERYBODY at Zenith. And, for the recored, I have been aurhorized by GOD Himself to service, repair and maintain any and all things that come into my sphere of influence, and I have the documentation to prove this (read your Bible to verify this).
Now then, I have an oscilloscope (among many other tools) and I know how to use them and, yes, I have years of training to go along with them. As for replacing components on circut boards, I was trained by a NASA cretified electronics technician.
What I now need is the exact part numbers and a place to get the best service manual(s). I am fully capable of testing and replacing any and all parts on a circut board. As always, your assistance is much appreciated. Thanks. q4g54twae

Techman is ok,,, I have 40 years experience in electronic, working for manny techs, I fix the problem that thoses tech cant, and thas my job, all of them know that I hate to work with zenith tv, and of course I charge a lot for one, hey tech your Humor is like mine,,nice...

jesus I forget to said,,, you most change the regulator , an small transistor there, a resistor, a capacitor , and a diode, there is a kit with those parts, you can by direct to zenith..good luck

dont forget to check the horizontal output tansistor and his power supply resistor..jesus I forget to said,,, you most change the regulator , an small transistor there, a resistor, a capacitor , and a diode, there is a kit with those parts, you can by direct to zenith..good luck
dont forget to check the horizontal output tansistor and his power supply resistor..

Ok thats great news. Just please dont be alone in the place where you repair this set. So someone can call 911 when you get knocked on your $%$#.. LOL Now that being said and all kidding aside. Zenith TV sets are made for the entire Printed circuit board to be replaced as a whole. Contact http://www.ptscorp.com and click on technical assistance and then find board by model and enter your model #. If the board doesent come up call them the #s there. You see I cant teach you what parts to replace in an e-mail message. It takes years of practical experience, and the proper equipment to repair an electronic device down to componet level. You will be better off to get the entire board with this Zenith and replace the PC board as it was designed for you to do. Now after you replace this board, there will be a few adjustment you will need to do like screen, focus, as well as modst likly on screen service menu as well, all depense on how well they serviced thios module. They can assist you with this as well. Good luck.

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Hi,
Is the power indicator is lighting. if not then Probably the power supply board have some problem. You have replace the power supply board or repair the exciting g one. Repairing the power supply is a skilled job. and can be done only by the person who is aware about the danger section of a power supply board. http://electro-medical.blogspot.in/

hi
First of all check the power cable and the power at the wall outlet. If these are ok the n the problem is with your tvs SMPS power supply. Power supply board is one which regulates and provide the required voltages to the other sections of the tv. SMPS is one of the most dangerous part in tv. Because chances to get electric shock. if you are not aware of electronics you cant rectify the problem. Better to consult some person who knows to repair the same.
If you need assistance from me, feel free to contact me throughfixya.

You TV might have bad capacitor inside now in most cases a end user cannot diagnose a bad capacitor based on knowledge so therefore we recommed you get a estimate for repair.

Now if you like to open this to check make sure you are aware of the dangers in doing so such as eletric shock injury or death so please be aware that fixya is not responsiable of such occurs we do recommend you take it to a shop if you do not know how to fixy this unit.

Diagnosis BaD Capacitor

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These units are famous for bad capacitors in the power supply and loose solder joints at the high voltage transformer. The deflection PCB has to be removed to perform these repairs. This is also a dangerous circuit to work with. You may want to have a repair shop check it out for you. Thanks

This is a typical problem for several Akai/Ilo models that utilize the MLT169A Main Power Supply. Your choices are to Replace the power supply (about $100 shopjimmy.com) yourself. Repair the power supply If you are an electronics technician. Or for the "money is no object" wealthy, take it to a local repair shop and expect to pay in excess of $300. Just be aware that the problem will most likely return in the near future. I am on my 3rd PS in 2 years, 1 lasted only 61 days.

That is the best idea I've heard all day. The majority of the individual parts in LCD,s and Plasma's are not available, they come as complete board assembly's. There is no telling who made Emerson. You may find a mfg part number on a chip but when you do the part research you will find manufacturing companies that only sell by the "thousands" they sell these only to the tv manufacturers. If you could get the IC anything above 85 pin you will not be able to replace. These were installed by robotics.

It's not difficult, but it's dangerous. Your best bet is to look for a repair person right here on Fixya - just click on the link that says My Products above, and it's cake from there.
It's a quick process, and it shouldn't run you too much more than the 252 you already spent... and you're saving yourself the risk of electrocution. Those parts are crammed in there like a game of Tetris.
Good luck!